#content .btnitem {
    width: 200px;
    margin: 10px auto;

}

#content .btnitem>button {
    box-shadow: 2px 2px 2px #888888;
    border-radius: 5px;
    line-height: 30px;
    letter-spacing: 2px;
    height: 30px;
    font-size: 16px;
    min-width: 88px;
    padding: 0 10px;
    background-color: #49B377;
    border: 0;
    margin-left: 5px;
    color: #fff;
}

#content .btnitem :nth-child(2) {
    background-color: #505050;
}